Idea generator

18 Horror Writing Prompts Prompts

These prompts create a starting constraint, question, or situation. Use one as written, combine two, or change the audience, setting, objective, or limitation to make a new exercise.

Choose a random prompt from the bank.
Prompt 1

A new apartment has a door the landlord insists has always been painted shut.

Prompt 2

Every person in a village dreams the same room, but one newcomer sees an extra window.

Prompt 3

A smart speaker begins answering questions several seconds before they are asked.

Prompt 4

An archivist finds today’s newspaper stored in a box sealed thirty years ago.

Prompt 5

A family tradition requires everyone to leave one chair empty, and nobody will explain why.

Prompt 6

A night security guard notices that the mannequins are always facing the nearest exit at dawn.

Prompt 7

A commuter hears station announcements naming memories instead of stops.

Prompt 8

A doctor treats a patient whose medical scan contains a handwritten message.

Prompt 9

A school removes one student from every class photo, but classmates still remember them.

Prompt 10

A storm knocks out power everywhere except a house that has been abandoned for decades.

Prompt 11

A tourist town closes every mirror before sunset during one week of the year.

Prompt 12

A voice on an old answering machine starts describing events that have not happened yet.

Prompt 13

A basement flood reveals stairs continuing downward beneath the foundation.

Prompt 14

A gardener discovers that one plant grows only after someone in the house tells a lie.

Prompt 15

A child returns from camp with perfect memories of a cabin that staff say was demolished years ago.

Prompt 16

A neighborhood group chat gains messages from an address at the center of an empty lot.

Prompt 17

A lighthouse keeper sees a second lighthouse blinking from the open sea.

Prompt 18

A repair technician finds human fingerprints inside a device that has never been opened.